So yeah, Google totally just won the conference showdown by easily beating both Apple and Microsoft. Not only did Google announce Android 4.1 with some really cool new features, a cheap but non-crippled tablet, and a new Android device called the Nexus Q, but they also opened up pre-orders for Google Glass. So yeah.

but they are years away from having The Real Thing if this is all they have right now

Many years.

What eye-displays seem to be primarily good at is giving people headaches
...unless they have optical systems which make their size, weight and costs non-trivial (much above 1,5k; like even the newest on http://en.wikipedia.org/wiki/Helmet-mounted_display )

What people imagine, what people want (yeah... http://www.osnews.com/permalink?525237 ), will be probably possible around the time of holographic displays (by the virtue of tech with pixels comparable to the wavelength of light - essentially also perfect optical surfaces; I mention such eye-display usage in http://www.osnews.com/thread?492454 ) ...but that's at least few decades away.
Laser projection on the retina should be earlier - but that's still quite some time away; plus not what people expect and want, likely quite "schematic" and monochromatic, in plausible consumer implementations.